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Use the given point on the circle to find the value of cosine. Recall r=sqrt x^2+y^2 and cos 0=x/y

Use the given point on the circle to find the value of cosine. Recall r=sqrt x^2+y-example-1

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Answer:

cosine=-1/2

Explanation:

Use the given point on the circle to find the value of cosine. Recall r=sqrt x^2+y-example-1
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